Sandpapering-block.



No. 672,408'. Patented Apr. le, |901. M. E. MCAFEE.

SANDPAPERING BLUCK.

(Application led Apr. 19, 1900.;

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No. 672,408. Patented Apr. la, 19m. M. E. MGAFEE.

SANDPAPERING BLOCK.

(Application filed Apr. 19` 1900.y

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MORGAN E. MeArnn, or ATLANTA, enoR'eiA;

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srnotrlcncrlolv forming part of Letters raient No. 672,408, dateanpriiie, 1 eci'. Application filed April 19,1900. Serial No. 13,417. (Nomodeli- To all whom it may concern,.-

Be it known that I, MORGAN E. MCAFEE, a citizen of the United States ofAmerica, and a resident of Atlanta, in the county of Fulton and State ofGeorgia, have made a certain new and useful Improvement inSandpapering-Blocks; and I do hereby declare the following to be a full,clear, and exact descrip tion of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to lettersof reference marked thereon, Which form part of this specification.

This invention relates to devices for holding sandpaper upon a suitableblock or backing and providing same With an adjustable handle, wherebythe work of hand-sanding will be facilitated and the Workman able toemploy a greater percentage of his strength in pressing the sandpaperagainst the object sanded.

The invention consists in the device hereinafter fully specified andclaimed.

In the accompanying drawings, Figure I is a side elevation of thedevice. Fig. 2 is a plan view thereof. Fig. 3 is a side elevation` ofthe svviveling casting; and Fig. 4.- is an inverted plan view thereof,Fig. 5 being an end elevation of the same part. Figs. 6 and 7 arerespectively plan and end views of the eccentric clamp, and Fig. S is anedge view of the spring therefor. Fig. 9 is a detail in section, showingthe spring in operative position.

In the figures like reference characters are uniformly employed in thedesignation of corresponding elenients of construction.

A is the block which forms the hacking for the sandpaper, to which sameis secured, and consists of a rectangular body preferably made of Woodand having its ends chamfered, as best shown in Fig. l. The preferredform of these ends is concave to provide for the better securing of thesandpaper.

ct represents cornerplates which are secured upon the edge of the blockA, being preferably let into saine their thickness, so as to have theirouter faces iiush with the edge of said block, as shown in Fig. 2, andare provided with upwardlyprojecting curved arms at', projecting beyondthe ends of thel said block A and being perforated to receive a pintlea2, upon which the springpressed eccentric as is pivoted. Thiseccentric, shown in Figs. l, 2,'6, and 7, consists of a castingperforated longitudinally with an elongated hole, as shown in Fig. 7,adapted to pivot same upon the pintle a2. One of the Walls of this hole,as shown in Fig. 7, should be straightand at,the better to seatthespring a, Figs. Sand 9, which presses against that side of said hole andagainst the piutle a2, whereby the receding abutment and eccentric arepermitted to con form to the thickness of one or more sheets ofsandpaper which may be clamped between same. Upon reference to Fig. litwill be seen that one of these eccentrics-that is, the righthand one-isin engagement with the paper, clamping the end between it and the block,while the other eccentric is turned so as to release the paper. It isobvious that .a movement of this said other eccentric in the directionof the arrow Fig. l, Will draw the paper taut across the end of theblock A and clamp it there, securing it iirmly by reason of the strongfrctional contact due to the action of the spring a4 and the fact thatthe'paper is bent around the projecting lower corner a5 of the block A.

As shown in Figs. l, 3, 4E, and 5, .a metal connecting block or castingBis provided for the purpose of fastening the handle C to the block A.This handle C may be in any form desired; but the form shown ispreferred, in which it is made oval and bulging at its centerand nearitsends with such corners rounded as Would come in contact with the hands.The casting B consists of a baseplate o, preferably circular in form. Inthe lower side of this base-plate o are recesses b2 for a vpurposehereinafter specified, While projecting from the upper side of the plateare curved arms' b3, connected at their upper ends With each other, theloop so formed serving as a handhold and having on its upper side aribbif, enlarged at its center, if desired, substantially as shown atb5, and perforated to receive a screw by which the handleb may besecured in place. The rib b4 performs the function ot' making connectionbetween the curved IOO arm b3 and the handle C perfectly rigid, so thatthe movement of the casting B may be accomplished by swinging thehandle, whereby said handle may be adjusted to any desired anglerelatively to the base-block A. In the upper side of the said base-blockA is a recess, and in thisrecessis seated a plunger d6, spring-pressedupwardly and capable of entering the correlative recess b2 in theswiveling casting B, thus holding it with a sufficient degree ofrigidity in anyset position.

It is obvious that the sandpaper may be very easily attached in themanner hereinbefore specified to the block A, and it is plain that aworn-out sheet may be easily torn off and a fresh one exposed. It isalso obvious that the handle C may be movedinto an)7 position relativelyto the block A that best suits the needs of the user.

For the purpose of accommodating parts of sandpaper without waste theblock A should be of such size in length and width as will takeone-half, one-third, or one-fourth of a sheet of sandpaper withoutwaste. One to take one-third of a sheet of standard-size paper would beabout seven and one-fourth by three and five-eighths inches face.

Having thus described myinvention,what Iclaiin as new, and desire tosecure by Letters Patent of the United States, is-

l. In a sandpaper-block, the block proper and eccentrics mountedrevolubly trans` verselyof the ends thereof and spring-pressed in thedirection of its major diameter, and adapted to pinch a piece ofsandpaper bef tween same and the ends of the said block.

2. In a sandpaper-block, the block proper and plates provided withgooseneck arms secured to the edges of said block near its corners,eccentrics mounted between the free ends of said gooseneck arms so as tobe partially revoluble near and press the sandpaper against the ends ofthe said block.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

MORGAN E. MCAFEE.

Witnesses:

A. P. Woon, EDWD. P. WOOD.

